Metal heat exchanger tube

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11073343
APP PUB NO 20160305717A1
SERIAL NO

15103193

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A metal heat exchanger tube has integral ribs formed on the outside of the tube. The ribs have a rib base, rib flanks, and a rib tip. The rib base protrudes substantially radially from the tube wall. A channel is formed between the ribs, in which channel additional structures spaced apart from each other are arranged. The additional structures divide the channel between the ribs into segments. The additional structures reduce the cross-sectional area in the channel between two ribs through which flow is possible by at least 60% locally and, at least thereby, limit a fluid flow in the channel during operation.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
WIELAND-WERKE AG89079 ULM

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
El, Hajal Jean Ulm, DE 12 36
Gotterbarm, Achim Dornstadt, DE 14 28
Knab, Manfred Dornstadt, DE 15 117
Lutz, Ronald Blaubeuren, DE 26 230

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Jan 27, 2025
7.5 Year Payment $3600.00 $1800.00 $900.00 Jan 27, 2029
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jan 27, 2033
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00